41-3=
20+37=
59-3=
25+10+7=
5+42=
27+8=
30+22=
30+(28-20)=
93-60=
40-9=
64-30=
56-(32+8)=
乘法算式:×
9×5=
96﹣60=
4×8=
3×6=
4×7=
6×9=
52﹣8=
5×6﹣6=
5×8=
7×8=
25+7=
3×9+9=
12-7=
53-27=
2×2=
2×3=
2×3+5=
3×3=
4×2=
4×4=
1×5=
4×1+7=
80-8=
72-50=
9+48=
38-3=
2×4-8=
20+39=
4×1=
1×3=
25+17-25=
7×5= 37+20= 4×3+3= 26+14-30=
78-32= 9×4= 6×2-2= 55-12+24=
42+34=
38+20=
48-23=
51-21=
8+61=
25+11=
63-9=
76-32=
5×4= 30+22= 25÷5= 8+62=
78-50= 24-6= 77-5= 28-8=
25+7= 3×3= 5÷5= 6×3=
6×2-7= 5×6-8= 6×3+6= 2+6+8=
78-29大约是 37+24大约是
26+57大约是 83-47大约是
19+55大约是 24+46大约是
38+33大约是 72+29大约是
52-38大约是 61-49大约是